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Forum: Security

Post here for help with Linux security issues: antivirus, firewalls, encryption, vulnerabilities, etc

  1. Sticky Thread Sticky: A short guide to Linux security

    Here at we are often asked about the potential threat of a virus or malware attack. This short guide is designed to answer some of...

    Started by fingal, 02-25-2006
    • Replies: 1
    • Views: 72,547
    01-11-2010 Go to last post
  1. question about logging users

    Hi, If some other user enters with his own login, and then makes the "su" command with my username, is there a way to know or log that? thanks

    Started by statt, 08-01-2007
    • Replies: 1
    • Views: 855
    08-01-2007 Go to last post
  2. Remote SSH Access Problem

    I'm currently having a problem with logging into my SFTP server. After installing OpenBSD i have added two users "Blue" and "Red". To prevent...

    Started by XWolfeX, 07-27-2007
    • Replies: 2
    • Views: 916
    07-30-2007 Go to last post
  3. how to install ssh?

    i'm wondering if anybody has any tutorials that can help me.

    Started by bkgenesis, 07-28-2007
    • Replies: 3
    • Views: 10,949
    07-30-2007 Go to last post
  4. How to prevent directory browsing in ftp, but still download from folder

    Hello everyone, I'm currently trying to setup an ftp site using VSFTP and have a couple requirements for anonymous access to different folders on...

    Started by rpfrimmer, 07-26-2007
    • Replies: 0
    • Views: 2,143
    07-26-2007 Go to last post
  5. Cool BSM Data on a Linux Box, Suggestions!?!?

    I have a solaris box which runs 24x7 auditing functions which log diverse sets of different processes on a totally isolated LAN. The solaris box...

    Started by mp3spy, 07-20-2007
    • Replies: 0
    • Views: 1,032
    07-20-2007 Go to last post
  6. Exclamation Password Policies / PAM

    Hi, I am currently facing this problem and would appreciate any help ... As for setting password policies such as (default length of password,...

    Started by sharik_pahwa, 07-19-2007
    • Replies: 0
    • Views: 1,422
    07-19-2007 Go to last post

    hi guys, i have a question. i wrote a cryptography algorithm implemented in c++ and perl. I wanna use this instead of MD5 cus this one is the default...

    Started by hansr69, 07-19-2007
    • Replies: 0
    • Views: 823
    07-19-2007 Go to last post
  8. GnuPG: I want my private key!

    Hi folks! I've been reading lately about GnuPG and how I can use it to sign and encrypt data. I know the importance of my passphrase, and that I...

    Started by chrishoeppner, 07-17-2007
    • Replies: 2
    • Views: 17,640
    07-17-2007 Go to last post
  9. Nessus port scanner

    i am having a problem when i need to start my nessus port scanning software.It giving a error "Can not open conncetion to localhost".i am using...

    Started by tmuche, 10-09-2006
    • Replies: 4
    • Views: 5,967
    07-16-2007 Go to last post
  10. How secure is this IPTABLES setup?

    I'm a bit of a newb and this is my first go at creating an iptables / nat script. however I'm not sure if this is secure enough... i really want to...

    Started by jimbo7, 07-14-2007
    • Replies: 1
    • Views: 10,697
    07-16-2007 Go to last post
  11. LIVE-CD to check wireless security

    hi I'm looking for a linux LIVE-CD to check wireless security. greetings cc

    Started by cc, 07-14-2007
    • Replies: 1
    • Views: 959
    07-15-2007 Go to last post
  12. Routing tables misteriously reloaded

    Hi A few days ago my server suddenly went offline out of the blue, after over a year of uptime. RHEL 4. I could get the ISP to ping it from the...

    Started by DJJoe, 07-11-2007
    • Replies: 0
    • Views: 971
    07-11-2007 Go to last post
  13. secure network question

    if i have IPCop on a computer that is wirelessly connected to the internet and i have 2 ethernet cards in it, would i be able to hook that computer...

    Started by killzoneman00, 07-11-2007
    • Replies: 1
    • Views: 807
    07-11-2007 Go to last post
  14. virus scanner on linux

    hi should I install virus scanner on my linux server, except mail server or should forget this at the moment ? the whole mail traffic will be...

    Started by cc, 07-11-2007
    • Replies: 2
    • Views: 1,210
    07-11-2007 Go to last post
  15. using 'script' with sshd

    my users like to delete their .bash_history files or just ln them to /dev/null. i am looking for a way to keep track of what they are doing...

    Started by cipherus, 07-09-2007
    • Replies: 5
    • Views: 1,088
    07-09-2007 Go to last post
  16. iptables

    Hi all, i want to make the port 23 as filtered. when some body tries to scan my system ports using Nmap, it has to display as filtered how...

    Started by mallik, 07-08-2007
    • Replies: 1
    • Views: 955
    07-08-2007 Go to last post
  17. selinux AVC errors despite making a rule :(

    Hey all, Okay I got a server running FC6 and Plesk 8.1.1 running websites. I do a : grep avc /var/log/messages to see any policies need...

    Started by aus-city, 06-30-2007
    • Replies: 0
    • Views: 1,198
    06-30-2007 Go to last post
  18. IDSs/IPSs that send SNMP traps

    Hi All, I am trying to find open source IDSs/IPSs that can send SNMP traps. The idea behind this is that there will be a centralised system that...

    Started by Nautilus, 06-21-2007
    • Replies: 1
    • Views: 1,144
    06-28-2007 Go to last post
  19. help! able to view htaccess file!

    I've got the following line in /etc/apache2/httpd.conf <FilesMatch "^\.ht"> Order allow,deny Deny from all </FilesMatch> but if I...

    Started by bentaylor, 06-25-2007
    • Replies: 1
    • Views: 955
    06-25-2007 Go to last post
  20. Lightbulb user should logout if inactive

    I am trying for a certain thing. if the user is inactive or idle for certain period say 1 hour he should be logout by system. one way is to write...

    Started by sharik_pahwa, 06-22-2007
    • Replies: 1
    • Views: 916
    06-22-2007 Go to last post

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